// ========================================================================= //

// includes
#include "stdio.h"
#include "stdlib.h"
#include "time.h"
#include "string.h"
#include "limits.h"
#include "float.h"



#define JOTAI_NUM_RANDS_ 25

const unsigned rand_primes[JOTAI_NUM_RANDS_] = {179, 103, 479, 647, 229, 37, 271, 557, 263, 607, 18743, 50359, 21929, 48757, 98179, 12907, 52937, 64579, 49957, 52567, 507163, 149939, 412157, 680861, 757751};

int next_i() {
  int counter = 0;
  return rand_primes[(++counter)%JOTAI_NUM_RANDS_];
}

float next_f() {
  int counter = 0;
  return rand_primes[(++counter)%JOTAI_NUM_RANDS_] / 757751.0F;
} 


// Usage menu
void usage() {
    printf("%s", "Usage:\n\
    prog [ARGS]\n\
\nARGS:\n\
       0            int-bounds\n\
       1            big-arr\n\
       2            big-arr-10x\n\
       3            empty\n\
\n\
");

}


// ------------------------------------------------------------------------- //

#define NULL ((void*)0)
typedef unsigned long size_t;  // Customize by platform.
typedef long intptr_t; typedef unsigned long uintptr_t;
typedef long scalar_t__;  // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */
typedef  struct TYPE_2__   TYPE_1__ ;

/* Type definitions */
typedef  int u8 ;
typedef  int u32 ;
struct spi_mem {TYPE_1__* spi; } ;
struct TYPE_2__ {int mode; } ;

/* Variables and functions */
 int ENOTSUPP ; 
 int SPI_RX_DUAL ; 
 int SPI_RX_QUAD ; 
 int SPI_TX_DUAL ; 
 int SPI_TX_QUAD ; 

__attribute__((used)) static int spi_check_buswidth_req(struct spi_mem *mem, u8 buswidth, bool tx)
{
	u32 mode = mem->spi->mode;

	switch (buswidth) {
	case 1:
		return 0;

	case 2:
		if ((tx && (mode & (SPI_TX_DUAL | SPI_TX_QUAD))) ||
		    (!tx && (mode & (SPI_RX_DUAL | SPI_RX_QUAD))))
			return 0;

		break;

	case 4:
		if ((tx && (mode & SPI_TX_QUAD)) ||
		    (!tx && (mode & SPI_RX_QUAD)))
			return 0;

		break;

	default:
		break;
	}

	return -ENOTSUPP;
}

// ------------------------------------------------------------------------- //

int main(int argc, char *argv[]) {

    if (argc != 2) {
        usage();
        return 1;
    }

    int opt = atoi(argv[1]);
    switch(opt) {

    // int-bounds
    case 0:
    {
          int buswidth = 100;
        
          int tx = 100;
        
          int _len_mem0 = 1;
          struct spi_mem * mem = (struct spi_mem *) malloc(_len_mem0*sizeof(struct spi_mem));
          for(int _i0 = 0; _i0 < _len_mem0; _i0++) {
              int _len_mem__i0__spi0 = 1;
          mem[_i0].spi = (struct TYPE_2__ *) malloc(_len_mem__i0__spi0*sizeof(struct TYPE_2__));
          for(int _j0 = 0; _j0 < _len_mem__i0__spi0; _j0++) {
              mem[_i0].spi->mode = ((-2 * (next_i()%2)) + 1) * next_i();
        
          }
        
          }
        
          int benchRet = spi_check_buswidth_req(mem,buswidth,tx);
          printf("%d\n", benchRet); 
          for(int _aux = 0; _aux < _len_mem0; _aux++) {
          free(mem[_aux].spi);
          }
          free(mem);
        
        break;
    }
    // big-arr
    case 1:
    {
          int buswidth = 255;
        
          int tx = 255;
        
          int _len_mem0 = 65025;
          struct spi_mem * mem = (struct spi_mem *) malloc(_len_mem0*sizeof(struct spi_mem));
          for(int _i0 = 0; _i0 < _len_mem0; _i0++) {
              int _len_mem__i0__spi0 = 1;
          mem[_i0].spi = (struct TYPE_2__ *) malloc(_len_mem__i0__spi0*sizeof(struct TYPE_2__));
          for(int _j0 = 0; _j0 < _len_mem__i0__spi0; _j0++) {
              mem[_i0].spi->mode = ((-2 * (next_i()%2)) + 1) * next_i();
        
          }
        
          }
        
          int benchRet = spi_check_buswidth_req(mem,buswidth,tx);
          printf("%d\n", benchRet); 
          for(int _aux = 0; _aux < _len_mem0; _aux++) {
          free(mem[_aux].spi);
          }
          free(mem);
        
        break;
    }
    // big-arr-10x
    case 2:
    {
          int buswidth = 10;
        
          int tx = 10;
        
          int _len_mem0 = 100;
          struct spi_mem * mem = (struct spi_mem *) malloc(_len_mem0*sizeof(struct spi_mem));
          for(int _i0 = 0; _i0 < _len_mem0; _i0++) {
              int _len_mem__i0__spi0 = 1;
          mem[_i0].spi = (struct TYPE_2__ *) malloc(_len_mem__i0__spi0*sizeof(struct TYPE_2__));
          for(int _j0 = 0; _j0 < _len_mem__i0__spi0; _j0++) {
              mem[_i0].spi->mode = ((-2 * (next_i()%2)) + 1) * next_i();
        
          }
        
          }
        
          int benchRet = spi_check_buswidth_req(mem,buswidth,tx);
          printf("%d\n", benchRet); 
          for(int _aux = 0; _aux < _len_mem0; _aux++) {
          free(mem[_aux].spi);
          }
          free(mem);
        
        break;
    }
    // empty
    case 3:
    {
          int buswidth = ((-2 * (next_i()%2)) + 1) * next_i();
        
          int tx = ((-2 * (next_i()%2)) + 1) * next_i();
        
          int _len_mem0 = 1;
          struct spi_mem * mem = (struct spi_mem *) malloc(_len_mem0*sizeof(struct spi_mem));
          for(int _i0 = 0; _i0 < _len_mem0; _i0++) {
              int _len_mem__i0__spi0 = 1;
          mem[_i0].spi = (struct TYPE_2__ *) malloc(_len_mem__i0__spi0*sizeof(struct TYPE_2__));
          for(int _j0 = 0; _j0 < _len_mem__i0__spi0; _j0++) {
              mem[_i0].spi->mode = ((-2 * (next_i()%2)) + 1) * next_i();
        
          }
        
          }
        
          int benchRet = spi_check_buswidth_req(mem,buswidth,tx);
          printf("%d\n", benchRet); 
          for(int _aux = 0; _aux < _len_mem0; _aux++) {
          free(mem[_aux].spi);
          }
          free(mem);
        
        break;
    }
    default:
        usage();
        break;

    }

    return 0;
}
